EP2601049B1 - Aus einem behälterrohling geformter behälter mit verbesserten öffnungseigenschaften durch streckwärmebehandlung von polymerschichten - Google Patents
Aus einem behälterrohling geformter behälter mit verbesserten öffnungseigenschaften durch streckwärmebehandlung von polymerschichten Download PDFInfo
- Publication number
- EP2601049B1 EP2601049B1 EP11760993.3A EP11760993A EP2601049B1 EP 2601049 B1 EP2601049 B1 EP 2601049B1 EP 11760993 A EP11760993 A EP 11760993A EP 2601049 B1 EP2601049 B1 EP 2601049B1
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- EP
- European Patent Office
- Prior art keywords
- layer
- container
- composite
- polymer
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0036—Heat treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
- B65D5/563—Laminated linings; Coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/62—External coverings or coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/72—Contents-dispensing means
- B65D5/74—Spouts
- B65D5/746—Spouts formed separately from the container
- B65D5/747—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/40—Closed containers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
Definitions
- the preservation of food whether food for human consumption or animal food products by storing them in either a can or in a sealed glass with a lid.
- the durability can be increased, for example, by each of the food and the container, here glass or tin, separated as much as possible sterilized and then filled the food in the container and this is closed.
- this proven over a long time measure to increase the shelf life of food has a number of disadvantages, such as a further necessary downstream sterilization.
- cans and jars have the disadvantage that a very dense and space-saving storage is not possible.
- cans and glasses have a considerable weight, which leads to increased energy consumption during transport.
- tinplate or aluminum even if the raw materials used for this purpose come from recycling, a fairly high energy consumption is necessary.
- glasses comes added aggravating an increased transport costs, since these are usually prefabricated in a glassworks and then need to be transported using significant transport volumes to the food-filling operation.
- glasses and cans can be opened only with considerable effort or with the help of tools and thus rather cumbersome. With cans, there is a high risk of injury due to sharp edges created when opening. When it comes to glasses, it often happens that when filling or opening the filled glasses, glass fragments enter the food, which in the worst case can lead to internal injuries when eating the food.
- sheet-like composites are often referred to as laminate - produced container.
- Such sheet-like composites are often composed of a thermoplastic layer of plastic, usually consisting of cardboard or paper backing layer, a primer layer, a barrier layer and a further plastic layer, such as inter alia WO 90/09926 A2 disclosed.
- laminate containers are often characterized in that they have drinking holes or perforations for better ⁇ ffenkle.
- These are produced by, for example, introducing holes in the cardboard used to produce the laminate, by means of which the further laminate layers are then laminated to form perforated cover layers covering the hole area.
- This hole area can then be provided with a closure device which, when actuated, pushes the hole-covering layers into the container or tears it out at the top.
- a drinking straw can also simply be pressed into such a hole area.
- Such hole areas are for example from the EP-A-1 570 660 or the EP-A-1 570 661 known.
- laminate containers may also be provided with perforations, which allow an opening of the container by partially tearing the laminate along the perforation.
- perforations may be applied, for example, by means of laser beams in the finished laminate in which the laser beam selectively removes the outer polymer layer and the carrier layer to form a plurality of holes.
- the disadvantage of the previously known from the prior art laminate container having such hole areas lies in particular in that when opening the container, either by operating a closure device, by inserting a drinking straw or tearing along a perforation, the hole area Covering hole top layers, which usually at least the barrier layer and below, so arranged in the direction of the bottled food layers, which are laminated on the barrier layer comprises insufficiently separated from the rest of the laminate. Frequently, this leads to a thread formation of the thermoplastic polymer layers. These lead to a bad pouring behavior.
- EP-A-1 570 660 or the EP-A-1 570 661 Now try these disadvantages over the selection certain polymers, namely to fix made by means of metallocenes polyolefin. Next put the WO 03/095199 A1 . WO 98/14317 A1 . DE 60034175 T2 and the WO 2004/089628 A1 State of the art of the present invention.
- the object of the present invention is to at least partially overcome the disadvantages resulting from the prior art.
- An object of the present invention was to provide a method by which not only a few certain few polymers but a number of polymers can be used at high production speeds of the sheet-like composite, and yet good opening and pouring behavior is achieved.
- an object of the invention is to provide a sheet-like composite with a method for its production for a container with good opening properties, be it by closures or perforations to be opened. Again, it depends on the production of the composite on a high speed.
- the phrase " further layer Y following a layer X toward the interior of the container " as used above is intended to express that layer Y is closer to the interior than layer X.
- This formulation does not necessarily imply that layer Y is instantaneous rather follows the layer X but rather also includes a constellation in which there are one or more further layers between the layer X and the layer Y.
- the sheet-like composite is characterized in that at least the carrier layer directly on the polymer outer layer, the adhesive layer directly on the barrier layer and the polymer inner layer directly follows the adhesive layer.
- the container produced by a process according to claim 1 preferably has at least one, preferably between 6 and 16 edges, more preferably between 7 and 12 or even more edges.
- edges are understood to be, in particular, regions which, when a surface is folded, result from the superposition of two parts of this surface.
- the elongated contact areas of two wall surfaces of a substantially parallelepipedic container may be mentioned.
- Such a cuboid container usually has 12 edges.
- the container walls preferably represent the surfaces of the container framed by the edges.
- the container walls of a container according to the invention are preferably at least 50, preferably at least 70 and more preferably at least 90% of their area from a carrier layer as part of the sheet-like composite educated.
- thermoplastics As a polymer outer layer, which usually has a layer thickness in a range of 5 to 25 .mu.m, more preferably in a range of 8 to 20 microns and most preferably in a range of 10 to 18 microns, in particular thermoplastics come into consideration.
- Thermoplastics preferred in this context are in particular those having a melting temperature in a range from 80 to 155.degree. C., preferably in a range from 90 to 145.degree. C. and more preferably in a range from 95 to 135.degree.
- the polymer outer layer may also include an inorganic filler in addition to the thermoplastic polymer.
- Suitable inorganic fillers are all those which appear suitable to the person skilled in the art, preferably particulate solids, which, inter alia, lead to an improved heat distribution in the plastic and thus to a better sealability of the plastic.
- the sieve analysis determined average particle sizes (d50%) of the inorganic solids in a range of 0.1 to 10 microns, preferably in a range of 0.5 to 5 microns and more preferably in a range of 1 to 3 microns.
- Suitable inorganic solids are preferably metal salts or oxides of di- to tetravalent metals.
- the sulfates or carbonates of calcium, barium or magnesium or titanium dioxide, preferably calcium carbonate may be mentioned here.
- the polymer outer layer contains at least 60% by volume, preferably at least 80% by volume and particularly preferably at least 95% by volume, in each case based on the outer polymer layer, of a thermoplastic polymer.
- Suitable thermoplastic polymers of the polymer outer layer are polymers obtained by chain polymerization, in particular polyolefins, cyclic olefin copolymers (COC), polycyclic olefin copolymers (POC), in particular polyethylene and polypropylene, being preferred here, and polyethylene in particular is preferred.
- the melt flow rate ( MFR) of the polymers which can also be used as a mixture of at least two thermoplastic polymers by means of DIN 1133 (190 ° C./2.16 kg) is preferably in the range from 1 to 25 g / 10 min, preferably in one Range of 2 to 9 g / 10 min and more preferably in a range of 3.5 to 8 g / 10 min.
- the MFRs of these polymers determined by means of DIN 1133 are preferably in a range of 3 to 15 g / 10 min, preferably in a range of 3 to 9 g / 10 min and more preferably in a range of 3.5 to 8 g / 10 min.
- Other preferred polyethylenes associated with the polymer outer layer preferably have a density (according to ISO 1183-1: 2004) in a range of 0.900 to 0.960 g / cm 3 .
- a further layer or further layers may be provided on the side of the polymer outer layer facing towards the surroundings.
- a pressure layer can still be applied to the side of the outer polymer layer facing the surroundings.
- any backing material suitable for this purpose may be used as the backing layer following the polymer outer layer toward the interior of the container, which material has sufficient strength and rigidity to give stability to the container so that the container essentially retains its shape in the filled state.
- plastics are plant-based fibers, especially pulps, preferably glued, Bleached and / or unbleached pulps are preferred, with paper and board being particularly preferred.
- the basis weight of the carrier layer is preferably in a range of 140 to 450 g / m 2 , more preferably in a range of 160 to 400 g / m 2, and most preferably in a range of 170 to 350 g / m 2 .
- the barrier layer may be a metal foil, such as an aluminum foil, a metallized foil or a plastic barrier layer.
- a plastic barrier layer this preferably comprises at least 70% by weight, particularly preferably at least 80% by weight and most preferably at least 95% by weight of at least one plastic which is suitable for this purpose by the person skilled in the art, in particular for flavoring or packaging containers Gas barrier properties is known.
- thermoplastic materials are used here.
- the plastic barrier layer has a melting temperature (according to ISO 11357) in a range of more than 155 to 300 ° C, preferably in a range of 160 to 280 ° C and particularly preferably in a range of 170 to 270 ° C has.
- thermoplastics here N or O-bearing plastics come into consideration either alone or in mixtures of two or more.
- a plastic barrier layer it is further preferred that this is as homogeneous as possible and therefore can preferably be obtained from melts, such as those produced by extrusion, in particular layer extrusion.
- melts such as those produced by extrusion, in particular layer extrusion.
- plastic barrier layers obtainable by deposition from a solution or dispersion of plastics are less preferred since these, in particular, if a deposition or formation takes place from a plastic dispersion, often have at least partially particulate structures, which show less good gas and moisture barrier properties compared to obtainable from melt plastic barrier layers.
- Suitable polymers on which the plastic barrier layers can be based are, in particular, polyamide (PA) or polyethylene-vinyl alcohol (EVOH) or a mixture thereof.
- Suitable PAs are all PAs which appear suitable to the person skilled in the art for the production of and use in the containers according to the invention. Particular mention may be made here of PA 6, PA 6.6, PA 6.10, PA 6.12, PA 11 or PA 12 or a mixture of at least two thereof, with PA 6 and PA 6.6 being particularly preferred and PA 6 furthermore being preferred.
- PA 6 is commercially available under the trade names Akulon ®, Durethan ® and Ultramid ®.
- amorphous polyamides such as MXD6, Grivory ® and Selar ® ..
- the molecular weight of the PA should preferably be selected so that the selected molecular weight range for a enabling a good layer extrusion in the production of the flat grouping of the container and the flat composite on the other hand has sufficiently good mechanical properties, such as a high elongation at break, a high abrasion resistance and sufficient rigidity for the container itself.
- the PA has a density (according to ISO 1183-1: 2004) in a range of 1.01 to 1.40 g / cm 3 , preferably in a range of 1 , 05 to 1.3 g / cm 3, and more preferably in a range of 1.08 to 1.25 g / cm 3 . Further, it is preferable that the PA has a viscosity number in a range of 130 to 185 ml / g, and preferably in a range of 140 to 180, determined according to ISO 307 in 95% sulfuric acid.
- EVOH As EVOH, it is possible to use all polymers which appear to the person skilled in the art as suitable for the preparation and use of a container according to the invention.
- suitable EVOHs are commercially available under the trade names EVALTM of EVAL Europe NV, Belgium in a variety of different designs. Particularly suitable appear the varieties EVALTM F104B, EVALTM LR101B or EVALTM LR171B.
- the polyamide layer has a basis weight in a range of 2 to 120 g / m 2 , preferably in a range of 3 to 75 g / m 2 and more preferably in a range of 5 to 55 g / m 2. Furthermore, in this context, it is preferable that the plastic barrier layer has a thickness in a range of 2 to 90 ⁇ m, preferably in a range of 3 to 68 ⁇ m, and more preferably in a range of 4 to 50 ⁇ m.
- EVOH as a plastic barrier layer
- at least one, preferably at least all of the parameters previously listed for polyamide are fulfilled with regard to the basis weight and the layer thickness.
- a barrier layer is the use of an aluminum foil, which advantageously has a thickness in a range from 3.5 to 20 .mu.m, more preferably in a range from 4 to 12 .mu.m and most preferably in a range from 5 to 9 .mu.m.
- the barrier layer it is furthermore preferred according to the invention if the aluminum foil is bonded to the carrier layer via a laminating layer. In this case, a further layer is thus provided between the barrier layer and the carrier layer with the lamination layer.
- a lamination layer which usually has a layer thickness in a range of 8 to 50 microns, more preferably in a range of 10 to 40 microns and most preferably in a range of 15 to 30 microns, come as well as the polymer outer layer in particular thermoplastic materials consideration.
- preferred thermoplastics are in turn those having a melting temperature (according to ISO 11357) in a range of 80 to 155 ° C, preferably in a range of 90 to 145 ° C, and more preferably in a range of 95 to 135 ° C.
- Suitable thermoplastic polymers for the lamination layer are in particular polyethylene or polypropylene, wherein the use of polyethylene is particularly preferred.
- the MFRs of the polymers usable for the lamination layer are preferably in a range of 3 to 15 g / 10 min, preferably in a range of 3 to 9 g / 10 min and more preferably determined by means of DIN 1133 (190 ° C / 2.16 kg) in a range of 3.5 to 8 g / 10 min.
- the lamination layer it is preferred to have a density (according to ISO 1183-1: 2004) in a range of 0.912 to 0.950 g / cm 3 , an MFR in a range of 2.5 to 8 g / 10 min and a melting temperature in range from 96 to 135 ° C.
- Other preferred polyethylenes associated with the laminating layer preferably have a density (according to ISO 1183-1: 2004) in a range of 0.900 to 0.960 g / cm 3 .
- an adhesion promoter layer may also be interposed between the aluminum foil and the lamination layer, between the lamination layer and the support layer or between the lamination layer and the barrier layer and the lamination layer and the support layer be provided.
- Adhesion promoters are all polymers which, by means of suitable functional groups, are capable of producing a solid compound by forming ionic bonds or covalent bonds to the surface of the respective other layer.
- they are functionalized polyolefins obtained by co-polymerization of ethylene with acrylic acids such as acrylic acid, Methacrylic acid, crotonic acid, acrylates, acrylate derivatives or double bond-bearing carboxylic acid anhydrides, for example maleic anhydride, or at least two thereof were obtained.
- acrylic acids such as acrylic acid, Methacrylic acid, crotonic acid, acrylates, acrylate derivatives or double bond-bearing carboxylic acid anhydrides, for example maleic anhydride, or at least two thereof were obtained.
- Polyethylenmaleinklad graft polymers are particularly preferred, which are marketed under the trade name Bynel ® by DuPont.
- an adhesion promoter layer is provided.
- the adhesion layer following the barrier layer towards the container interior is preferably based on polymers which are capable of forming suitable functional groups by forming ionic bonds or covalent bonds to the surface of the respective other layer, in particular to the surface of the Aluminum foil, a solid compound, particularly preferably to produce a chemical bond.
- suitable functional groups by forming ionic bonds or covalent bonds to the surface of the respective other layer, in particular to the surface of the Aluminum foil, a solid compound, particularly preferably to produce a chemical bond.
- functionalized polyolefins which have been obtained by co-polymerization of ethylene with acrylic acids, acrylates, acrylate derivatives or double bond-bearing carboxylic acid anhydrides, for example maleic anhydride, or at least two thereof.
- polyethylene maleic anhydride graft polymers and ethylene-acrylic acid copolymers are particularly preferred, with ethylene-acrylic acid copolymers being most preferred.
- Such copolymers are sold for example under the trade name Nucrel ® by DuPont or under the trade name Escor ® from Exxon Mobile Chemicals.
- the polymer inner layer following the adhesive layer toward the container interior is based, as is the polymer outer layer described above thermoplastic polymers, wherein the inner polymer layer as well as the outer polymer layer may include a particulate inorganic solid.
- the polymer inner layer contains at least 60% by volume, preferably at least 80% by volume and particularly preferably at least 95% by volume, based in each case on the inner polymer layer, of a thermoplastic polymer.
- the polymer inner layer at least 70 wt .-%, more preferably at least 75 wt .-% and most preferably at least 80 wt .-%, each based on the inner polymer layer, one prepared by means of a metallocene catalyst Polyolefins, preferably a produced by a metallocene catalyst polyethylene (mPE) includes.
- mPE metallocene catalyst polyethylene
- the polymer inner layer is a mixture of a polyolefin prepared by a metallocene catalyst and another mixture polymer, wherein the further mixture polymer is preferably polyethylene not prepared by means of a metallocene catalyst, preferably not by means of a metallocene Catalyst produced LDPE is.
- the inner polymer layer is preferably a mixture of 70 to 95% by weight, particularly preferably 75 to 85% by weight of mPE and 5 to 30% by weight, particularly preferably 15 to 25% by weight. LDPE.
- the polymer inner layer is preferably a mixture of 5 to 50% by weight, more preferably 10 to 45% by weight mPE, and the remainder to 100% by weight LDPE.
- the polymer or polymer mixture of the polymer inner layer preferably has a density (according to ISO 1183-1: 2004) in a range from 0.900 to 9.300 g / cm 3 , particularly preferably in a range from 0.900 to 0.920 g / cm 3 and most preferably in a range of 0.900 to 0.910 g / cm 3 , while the MFR (ISO 1133, 190 ° C / 2.16kg) is preferably in a range of 4 to 17 g / 10min, more preferably in a range of 4.5 to 14 g / 10min, and most preferably in a range of 5 to 10 g / 10 min.
- a density accordinging to ISO 1183-1: 2004
- MFR ISO 1133, 190 ° C / 2.16kg
- the polymer inner layer directly follows the adhesive layer. Accordingly, no further layer, in particular no further polyethylene-based layer, very particularly preferably no further LDPE or HDPE layer is provided between the preferably mPE-containing polymer inner layer and the adhesive layer.
- the layer thickness of the adhesive layer SD HS is greater than the layer thickness of the polymer inner layer SD PIS . It is particularly preferred that the layer thickness of the adhesive layer SD HS by a factor in a range of 1.1 to 5, more preferably in a range of 1.2 to 4 and most preferably in a range of 1.3 to 3.5 is greater than the layer thickness of the polymer inner layer SD PIS .
- the total thickness of the adhesive layer and the polymer inner layer is often in the range of 10 to 120 microns, preferably in a range of 15 to 80 microns and more preferably in a range of 18 to 60 microns.
- the preferred layer thicknesses of the individual two layers result from the above factors.
- the sheet-like composite is provided in the inventive method in the form of a container precursor for a single container.
- container precursors also referred to as "packaging blanks” or “packaging blanks”
- package blanks can be obtained by extruding from one onto a composite roll
- the web of the laminate material containing the layers described above can be cut or punched out of the corresponding sheet-like blanks taking into account the shape of the container.
- These blanks or, before production of the blanks, the web of the laminate material can be provided with creases, which facilitate the subsequent folding of the blanks.
- Grooving is usually a generally linear area of the sheet-like composite in which the sheet-like composite is more densified by an embossing tool along that line as compared to the areas adjacent the line or grooving.
- the scoring on one side of the sheet-like composite is formed as a recess extending along a line with a curvature running on the other side of the sheet-like composite with respect to the recess.
- the groove preferably divides the sheet-like composite into a large-area part and a small-area part in comparison with the large-area part.
- the large-area part may be the side wall of the container and the small-area part may be a surface of the sheet-like composite forming the bottom.
- the small-area part may be the area of the sheet-like laminate which is connected after folding, in particular by sealing.
- the grooving can be provided at different stages of the production of the sheet-like composite.
- the scoring is carried out in the sheet-like composite according to the usually carried out by co-extrusion coating with thermoplastic materials.
- the grooves are made prior to coextrusion, preferably directly into the carrier layer.
- the support layer has at least one hole, the is covered at least with the barrier layer, the adhesive layer and the polymer inner layer as Lochdeck harshen.
- the carrier layer has a hole which is covered at least with the outer polymer layer, the barrier layer, the adhesive layer and the inner polymer layer as a hole top layers.
- a configuration of a composite is for example in the EP-A-1 507 660 and the EP-A-1 507 661 described, but there is provided between the polymer inner layer and the adhesive layer, a further, preferably LDPE-based layer.
- the hole provided in the carrier layer may have any shape known to those skilled in the art and suitable for different closures or drinking straws.
- the hole in the supervision curves on.
- the hole may be substantially circular, oval, elliptical or teardrop-shaped.
- the shape of the hole in the backing layer is usually also the shape of the opening, which is produced either by an openable closure associated with the container, through which the container contents are removed after opening from the container, or by a drinking straw in the container predetermined.
- the openings of the opened container often have shapes that are comparable or even equal to the hole in the carrier layer.
- the hole top layers at least partially, preferably at least 30%, preferably at least 70% and particularly preferably at least 90% of the hole through the hole formed surface are interconnected.
- the perforated cover layers are connected to one another in the region of the hole edges enclosing the hole, and preferably abutting connected to the edge of the hole, so as to achieve over a over the entire hole surface extending connection improved tightness.
- the hole-covering layers are connected to each other via the region formed by the hole in the carrier layer. This leads to a good tightness of the container formed from the composite and thus to the desired high durability of stored in the container food.
- the opening of the container is created by at least partially destroying the hole covering layers covering the hole. This destruction can be done by cutting, pushing into the container or pulling out of the container. Destroying and thus opening can take place by means of a closure which is connected to the container and arranged in the region of the hole, usually above the hole, perforating the perforated cover layers or a drinking straw which is pushed through the perforated covering layers covering the hole.
- the carrier layer has a plurality of holes in the form of a perforation, wherein the individual holes are covered at least with the barrier layer, the adhesive layer and the polymer inner layer as Lochdeck harshen.
- the container can then be opened by tearing along the perforation.
- the holes in the carrier layer which preferably also extend over the carrier layer in the direction of the environment lying layers (polymer outer layer and optionally printing layer), each have the skilled person for the design of an openable area in the container according to the invention seem appropriate form.
- circular or oblong holes which preferably extend along a line which forms a perforation in a container wall of the container according to the invention, are preferred.
- Such perforations are preferably produced by means of a laser which removes the layers previously located in the hole. It is also possible that the perforation as a whole is a linear Is formed weakening of the sheet-like composite, which has in the region of the weakening groups of sections with a smaller compared to the weakening layer thickness.
- These perforations are preferably obtained by mechanical, usually blades having perforation tools. In particular, this ensures that the container produced by the method according to the invention can be opened without excessive force or even the aid of a tool with less risk of injury, in which the container wall of the container according to the invention is torn open along the perforation thus formed.
- the barrier layer is in contact with the environment without a further plastic layer, such as the polymer outer layer. This is preferably accomplished by scribing, cutting or punching, or a combination of at least two of these measures of layers facing the environment from the barrier layer. In this case, it is preferred that at least one of these measures takes place by means of a laser.
- the use of laser beams is particularly preferred when a metal foil or a metallized foil is used as the barrier layer. In particular, perforations for easy tearing of the container can be produced.
- the container is filled with a food before closing.
- the filling can in principle be carried out in any manner familiar to the person skilled in the art and suitable for this purpose.
- the food and the container may be separated prior to filling by appropriate means such as treating the container with H 2 O 2 or UV radiation or other suitable higher energy Radiation or plasma treatment or a combination of at least two of them and the heating of the food are sterilized as much as possible.
- This type of filling is often referred to as "aseptic filling" and is preferred according to the invention. It is also widely used, in addition to or even in place of the aseptic filling, to heat the food-filled and sealed container to reduce the germ count. This is preferably done by autoclaving. Less sterile items and containers can also be used in this procedure.
- a composite precursor comprising at least the carrier layer is produced.
- this composite precursor is a laminate comprising the outer polymer layer, the support layer and the barrier layer.
- the barrier layer is a metal foil such as an aluminum foil or a metallized foil
- the composite precursor also comprises the lamination layer described above.
- the composite precursor may optionally be applied to the polymer outer layer Include printing layer. With regard to the hole in the carrier layer, there are various production possibilities of the composite precursor according to the invention.
- a carrier layer can be provided, which already has the hole.
- the further layers, in particular the outer polymer layer and the barrier layer or the lamination layer, can then be laminated onto this carrier layer in such a way that these layers cover the holes at least partially, but preferably completely.
- the polymer outer layer can then be laminated directly onto the barrier layer or the lamination layer, as described, for example, in US Pat EP-A-1 570 660 or the EP-A-1 570 661 is described.
- the composite precursor can be produced using a carrier layer which does not yet have holes, and then holes can be introduced into the carrier layer by cutting, laser treatment or punching, this measure optionally also only after process step b. can be stirred.
- the adhesive layer and the inner polymer layer are then applied by melt coating, preferably by extrusion coating, the adhesive layer being applied to the Barrier layer and the polymer inner layer is subsequently applied to the adhesive layer.
- the thermoplastic polymer forming the adhesive layer or the polymer inner layer is melted in an extruder and applied to the composite precursor in the molten state in the form of a laminar coating.
- the extrusion can be carried out by a series of successive individual extruders in single layers or by coextrusion in multiple layers.
- the inner polymer layer or at least the adhesive layer or at least both layers are stretched during application, which stretching preferably takes place by melt-stretching, more preferably by monoaxial melting.
- the corresponding layer is applied by means of a melt extruder in the molten state to the composite precursor and the coated, still in the molten state layer is then stretched in a preferably monoaxial direction to an orientation of the polymer in this To achieve direction. Subsequently, the applied layer is allowed to cool for the purpose of thermosetting. If both the adhesive layer and the polymer inner layer are stretched, then this process can be repeated twice, first with the adhesive layer and then with the polymer inner layer. In another embodiment, this can be done by coextrusion of two or more layers simultaneously.
- the stretching of the adhesive layer, the polymer inner layer or these two layers is achieved in that the composite precursor to which these layers are applied by melt extrusion relative to the exit velocity of the melt from the extruder is moved away from the extruder at a rate which is greater than the exit velocity of the melt, resulting in an elongation of the melt film.
- the slot width in the melt extruder is preferably in a range of 0.2 to 1.5 mm, more preferably in a range of 0.4 to 1.0 mm, so that the exit thickness of the melt when leaving the extruder slot preferably in a range of 0.2 to 1.5 mm, more preferably in a range of 0.4 to 1.0 mm, while the thickness of the applied to the composite precursor melt layer (adhesive layer or polymer inner layer) in a range of 5 to 100 .mu.m, especially preferably in a range of 7 to 50 microns.
- the stretching thus results in a significant reduction in the layer thickness of the melt layer from the region of the exit from the melt extruder to the melt layer which has been brought into contact with the composite precursor by application.
- the melt it is preferred in this context for the melt to have a temperature in the range from 200 to 360 ° C., particularly preferably in a range from 250 to 320 ° C., on leaving the melt extruder.
- the stretching takes place in the direction of the fiber direction in the case of a carrier layer formed of fibers, for example paper or cardboard.
- the direction of the fiber is understood to be the direction in which the carrier layer has the least bending stiffness. Often this is the so-called machine direction in which the carrier layer, if this is paper or cardboard, is produced. This measure can lead to an improved opening behavior.
- the melt layer is allowed to cool for the purpose of thermosetting, this cooling preferably by quenching via contact with a surface having a temperature in the range of 5 to 50 ° C, is more preferably maintained in a range of 10 to 30 ° C.
- the duration of this contacting of the composite film precursor covered with the melt film with the temperature-controlled surface is preferably in a range of 2 to 0.15 ms, particularly preferably in a range of 1 to 0.2 ms.
- a sheet-like composite is obtained in which at least the inner polymer layer or at least the adhesive layer or at least both layers at least 50 wt .-%, more preferably at least 65 wt .-% and most preferably at least 80 Wt .-%, each based on the respective layer, a stretched polymer includes.
- step c. is then from the in step b. a sheet container precursor formed for a single container, wherein this molding is preferably carried out by cutting or punching. If, as described above, holes are provided, for example in the form of a perforation in the container, by means of a laser, then they can be provided before the method step c. in the sheet-like composite still present as a web or after process step c. be prepared in the respective container precursors.
- a container is then formed from the sheet-like composite provided in process step (I) in the form of a container precursor for a single container.
- the container precursor is folded such that a jacket is an open container. This is usually done in that after folding this container blank whose longitudinal edges sealed to form a side wall or glued and one side of the shell by folding and further fixing, in particular sealing or gluing, is closed.
- folds are understood to mean a process in which an elongate bend forming an angle is preferably produced in the folded planar composite by means of a folding edge of a folding tool.
- a folding edge of a folding tool For this purpose, often two adjacent surfaces of a sheet-like composite are bent more and more on each other.
- the connection can be effected by any measure which appears suitable to the person skilled in the art and which makes possible a connection which is as gas- and liquid-tight as possible.
- the bonding can be done by sealing or gluing or a combination of both.
- connection is created by means of a liquid and its solidification.
- gluing chemical bonds are formed between the interfaces or surfaces of the two articles to be joined, creating the bond. It is often advantageous when sealing or gluing to press together the surfaces to be sealed or adhesive.
- the sealing temperature is preferably selected so that the plastic or resins involved in the sealing, preferably the polymers of the polymer outer layer and / or the inner layer of the polymer, are present as a melt.
- the sealing temperature should not be too high, so as not to put too much strain on the plastic or plastics, so that they do not lose their intended material properties.
- the sealing temperatures are at least 1 K, preferably at least 5 K and more preferably at least 10 K above the melting temperature of the respective plastic.
- process step (III) of the process according to the invention the container is then closed, whereby this closure likewise preferably takes place by gluing or sealing.
- An example of a method for producing a packaging container comprising the method steps (I) to (III) is in the case of a gable box in the WO-A-90/09926 A2 described.
- the container Before carrying out process step (III), the container can be filled with a food.
- Suitable foods are all foods known to the person skilled in the art for human consumption and also animal feed.
- Preferred foods are liquid above 5 ° C, for example drinks.
- Preferred foods are dairy products, soups, sauces, non-carbonated beverages such as fruit drinks and juices or teas.
- the foodstuffs can firstly be sterilized in previously sterilized containers or enclosed with a likewise previously sterilized sheetlike composite.
- the food can be sterilized after filling or enclosing. This is done for example by autoclaving.
- At least one of the perforated cover layers of the container precursor containing an expanded polymer is thermally treated.
- the purpose of this thermal treatment is to effect an at least partial cancellation of the orientation of the polymers in the adhesive layer, in the polymer inner layer or in both layers.
- This thermal treatment results in improved openability of the container.
- the thermal treatment may be by electromagnetic radiation, by hot gas treatment, by a solid state heat contact, by ultrasound, or by a combination of at least two of these measures.
- any type of radiation suitable for softening the plastics is considered by the person skilled in the art.
- Preferred types of radiation are IR, UV, and microwaves.
- Preferred modes of vibration are ultrasound.
- IR rays which are also used for IR welding of sheet-like composites, wavelength ranges of 0.7 to 5 ⁇ m must be mentioned.
- laser beams in a wavelength range of 0.6 to less than 10.6 microns can be used.
- Short-wave radiators in the range of 1 to 1.6 ⁇ m are preferably halogen radiators.
- Medium-wave radiators in the range of> 1.6 to 3.5 microns for example, metal foil radiator.
- quartz emitters are often used. More and more often lasers are used.
- diode lasers are in a wavelength range of 0.8 to 1 micron
- CO 2 laser used at about 10.6 microns.
- high frequency techniques with a frequency range of 10 to 45 MHz, often in a power range of 0.1 to 100 kW are used.
- Heating via contact with a solid may, for example, take place by means of a heating plate or heating mold which is in direct contact with the sheet-like composite and which transfers the heat to the sheet-like composite.
- Hot air may be directed onto the sheet composite by suitable fans, orifices or nozzles or a combination thereof.
- contact heating and hot gas are used simultaneously.
- a through-flow of hot gas and thereby heated and the hot gas through suitable openings releasing holding device for a formed from the sheet-like shell coat the sheet-like composite by contact with the wall of the holding device and the hot gas.
- the heating of the jacket can also take place in that the jacket is fixed with a jacket holder and the areas of the jacket to be heated are flown by one or two and more hot gas nozzles provided in the jacket holder.
- the above-described thermal treatment, the adhesive layer or the polymer inner layer is heated to a surface temperature in a range of 70 to 260 ° C, more preferably in a range of 80 to 220 ° C, to the orientation of the polymers in this layer or at least partially decrease in these two layers.
- the surface temperature becomes by the employment of a 1R measuring equipment of the type LAND Cyclops TI35 + thermal imaging camera, scanning system with 8-sided polygon mirror, 25Hz in a measuring angle of the lying flat sample of 45 ° (adjustable via photo tripod) at a distance from the lens ring to the polymer inner layer of 240mm and an emission factor 1 determined.
- the surface temperature is controlled by hot air having a temperature in the range of 200 to 500 ° C and more preferably in a range of 250 to 400 ° C each over a treatment period in a range of 0.1 to 5 sec, and more preferably in a range of 0.5 to 3 sec generated. This is particularly preferred for the treatment of hole areas.
- a linear inductor according to the invention is preferably used for the treatment.
- the surface to be treated of the sheet-like composite is moved past, wherein this is preferably carried out at speeds of at least 50 m / min but usually not more than 500 m / min. Often, speeds in a range of 100 to 300 m / min are achieved.
- the maximum transmission intensity of at least one of the perforated cover layers containing an expanded polymer differ before and after the thermal treatment. This can usually be determined by different representations of the area considered by a polarization filter. Thus, the thermally treated areas differ from the adjoining thermally untreated areas on a surface by light-dark contrasts. The same applies to areas before and after the thermal treatment.
- the at least one hole covering layer is the polymer inner layer.
- the barrier layer is a metal foil or a metallized plastic layer.
- the thermally treated polymer layer usually the polymer inner layer of the later-shaped container, is provided over it in such a way that the barrier layer shines through.
- the change in the structure of the inner layer of the polymer resulting from the thermal treatment generally reveals a difference in gloss compared to the non-thermally treated layer. The areas of different gloss coincide with the thermally treated areas of the surface of the polymer inner layer.
- other areas of the sheet-like composite can also be thermally treated. These too show one opposite the untreated areas different maximum transmission intensity. This includes all areas in which a connection is done by sealing and / or creases are provided for folding. Under these areas, the longitudinal seams on which the sheet-like composite is formed into a tubular or shell-like structure are particularly preferred. Following the above thermal treatment, the thermally treated areas may be allowed to cool again.
- At least one of the perforated cover layers is thermally treated in the manner described above after forming the container according to method step (II) and before closing method step (III).
- at least one of the hole-covering layers is thermally treated in the manner described above after providing a sheet-like composite in the form of a container precursor for a single container in step (I) and before forming the container in step (II) ,
- these areas form the inner polymer layers of the Lochdeck harshen.
- other areas of the sheet-like composite can also be thermally treated.
- the polymer inner layer in the one of the at least two regions (B1, B2) comprises a plastic that is less oriented than the other of the at least two regions (B1, B2).
- These show a different than the untreated areas of maximum transmission intensity. This includes all areas in which a connection is done by sealing and / or creases are provided for folding. Under these areas, the longitudinal seams on which the sheet-like composite is formed into a tubular or shell-like structure are particularly preferred.
- the areas are usually designed strip or web-like.
- the inner polymer layers of the perforated perforated layers of the perforation lie in one web.
- an area at least 1 mm wide is thermally treated.
- this area measured from the edge of the hole is up to 10 mm wide.
- the description relates to a non-claimed container to more than 50 wt .-%, based on the total weight of the empty container, formed from a sheet-like composite.
- the maximum transmission intensity is determined by placing on a surface to be tested a polarizing filter film IFK-P-W76 from Schneider Optik GmbH. The film is rotated on the surface to be tested until the differences in the maximum transmission intensity can be seen with the maximum bright-dark contrast.
- FIG. 1 shows a container 1 surrounding an interior 1 of a sheet-like composite 4, which separates a food enclosed therein from the environment 2.
- a covered hole 5 is provided in the head area, over which an openable closure (not shown) can be provided.
- FIG. 2 a section of the head region of a container 3 according to the invention is shown in a schematic cross-sectional representation.
- a with the details of the layer structure in FIG. 5 or 6 illustrated sheet-like composite 4 has a hole 5, which is delimited by a hole edge 9, on.
- the hole 5 there are perforated cover layers 6, which comprise at least the barrier layer 4_3, the adhesive layer 4_4 and the polymer inner layer 4_5. Due to the absence of the carrier layer 4_2 in the region of the hole 5, the perforated cover layers 6 enclose the carrier layer 4_2 reaching the hole edge 9 in a moisture-tight manner along the edge of the hole 9 and cover the hole 5, so that the container 3 is closed in a manner as liquid and gastight as possible.
- an openable closure 7 is provided over the hole 5 overlapping.
- the closure 7 has an opening means 8, which is connected to the perforated cover layers 6 and is pivotable via a hinge 10 in the direction of the dashed arrow. When pivoting the opening means 8 in the arrow direction the hole top layers 6 torn open and so the closed container 3.
- FIG. 3 shows a first particular embodiment of a container 3 produced by the inventive method, in which, in contrast to the in FIG. 1 shown container 3 on the top of the container 3 along a line 11 a plurality of holes are provided which form a perforation for easy opening of the container 3.
- FIG. 4 shows a schematic view of a for the production of in FIG. 1 If this, as in this case, a covered hole 5 is provided in the sheet-like composite 4, this has mostly Lochdecksichten 6, they can in a Treatment area 21, which may extend beyond the hole edge 9, have been treated thermally, in order to have a lower orientation in at least one polymer of the hole cover layers 6 compared to the parts of the sheet-like composite 4 located outside the treatment area 21.
- the container precursor further comprises a series of elongated grooves 22 which, when crossing or bifurcating, form a series of crevices 23. Grooving 22 and groove crosses 23 are located at the points of the container precursor 20, at which later edges and in the case of the crosshairs corners and multiply folded parts of the container 3 arise.
- the container precursor 20 has a perforation 24 formed from a multiplicity of overlaid holes 5 which has been thermally activated in a region 25 surrounding the perforation 24.
- the thermally activated region 25 differs in its maximum transmission intensity from the regions of the polymer inner layer 4_5 which adjoin the region 25.
- the container precursor 20 has a hole 5 with perforated cover layers 6 which have been thermally treated in a region 25. Again, this differs in its maximum Transmission intensity of the adjacent areas of the region 25 of the polymer inner layer 4_5.
- FIG. 5 shows the layer structure of the sheet-like composite 4, from which the container 3 can be produced by folding.
- the composite 4 comprises at least one outer polymer layer 4_1, which faces the environment 2 after formation of the container 3.
- the polymer outer layer 4_1 which is preferably formed from a thermoplastic polymer such as polyethylene or polypropylene, is followed by a carrier layer 4_2, preferably based on paper or cardboard, followed by a barrier layer 4_3.
- the barrier layer 4_3 is followed by the adhesive layer 4_4, which is finally followed by the polymer inner layer 4_5.
- this polymer inner layer 4_5 is in direct contact with the food.
- FIG. 6 shows the preferred layer structure of the sheet-like composite 4, from which the container 3 can be produced by folding.
- the composite 4 comprises in addition to those in FIG. 6 layers shown still on the polymer outer layer 4_1 applied pressure layer 4_7 and provided between the support layer 4_2 and the barrier layer 4_3 lamination 4_6.
- the adhesive layer 4_4 and the polymer inner layer 4_5 still another thermoplastic layer 4_8, preferably made of LLDPE provided.
- the thermoplastic layer 4_8 consists of or contains LDPE.
- FIG. 7 shows a schematic representation of the method according to the invention relating to the application of the adhesive layer and / or the polymer inner layer.
- One Composite precursor 12 is driven by a pair of rollers 14 continuously between this pair of rollers 14 through and thus continuously passed under a melt extruder 13. From the melt extruder 13, a melt of that thermoplastic polymer from which the adhesive layer 4_4 or the polymer inner layer 4_5 is formed is removed at the exit speed V out of the extruder slot 28 with an exit thickness 18 determined by the slot width 17. It reaches the surface of the composite precursor 12. If the melt is the adhesive layer 4_4, it is applied to the side of the barrier layer 4_3 of the composite precursor 12, which faces away from the carrier layer 4_2, with a layer thickness 19.
- melt is the polymer inner layer 4_5, it is applied to the adhesive layer 4_4.
- V which is greater than V
- problems arise when applying the adhesive layer 4_4 or the polymer inner layer 4_5 to a stretching of the melt film in a monoaxial direction and therefore to a monoaxial orientation of the polymer chains in this layer. Shown in the FIG. 8 also that stretching results in a significant reduction in the layer thickness of the melt layer from the region of exit from the melt extruder to the melt layer applied to the composite precursor.
- the composite thus obtained for the purpose of thermosetting the stretched melt layer can be cooled, for example by contact with a tempered surface 15 often designed as a cooling roller.
- both the adhesive layer 4_4 and the polymer inner layer 4_5 are applied as a stretched melt layer by the method described above are to be, the method described above is carried out first with the adhesive layer 4_4 and then with the polymer inner layer 4_5.
- the composite can still be heated by means of suitable heating devices 16, in particular in the hole regions become.
- FIG. 8 shows a sheet-like composite 4, for example, in the Figures 5 and 6 has shown construction.
- an inductor 26 is provided, which heats the hole-covering layer 6 and an edge region of the sheet-like composite 4 around the hole edges 9 by electromagnetic induction via a high-frequency generator 27.
Applications Claiming Priority (2)
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DE102010033464A DE102010033464B4 (de) | 2010-08-05 | 2010-08-05 | Aus einem Behälterrohling geformter Behälter mit verbesserten Öffnungseigenschaften durch Streckwärmebehandlung von Polymerschichten |
PCT/EP2011/003914 WO2012016702A1 (de) | 2010-08-05 | 2011-08-04 | Aus einem behälterrohling geformter behälter mit verbesserten öffnungseigenschaften durch streckwärmebehandlung von polymerschichten |
Publications (2)
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EP2601049A1 EP2601049A1 (de) | 2013-06-12 |
EP2601049B1 true EP2601049B1 (de) | 2017-03-15 |
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EP11760993.3A Active EP2601049B1 (de) | 2010-08-05 | 2011-08-04 | Aus einem behälterrohling geformter behälter mit verbesserten öffnungseigenschaften durch streckwärmebehandlung von polymerschichten |
Country Status (11)
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US (1) | US9221228B2 (pt) |
EP (1) | EP2601049B1 (pt) |
CN (1) | CN103180142B (pt) |
BR (1) | BR112013002716B8 (pt) |
CA (1) | CA2807176C (pt) |
DE (1) | DE102010033464B4 (pt) |
ES (1) | ES2627691T3 (pt) |
MX (1) | MX345590B (pt) |
PL (1) | PL2601049T3 (pt) |
RU (1) | RU2570663C2 (pt) |
WO (1) | WO2012016702A1 (pt) |
Families Citing this family (9)
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DE102010033466B4 (de) | 2010-08-05 | 2012-11-08 | Sig Technology Ag | Verpackungsbehälter aus einem flächenförmigen Verbund mit verbesserter Haft- und Innenschichtkombination |
DE102010033465B4 (de) | 2010-08-05 | 2012-11-08 | Sig Technology Ag | Von einer Rolle geformter Behälter mit verbesserten Öffnungseigenschaften durch Streckwärmebehandlung von Polymerschichten |
DE102010033464B4 (de) | 2010-08-05 | 2012-09-06 | Sig Technology Ag | Aus einem Behälterrohling geformter Behälter mit verbesserten Öffnungseigenschaften durch Streckwärmebehandlung von Polymerschichten |
DE102016209236A1 (de) * | 2016-05-27 | 2017-11-30 | Sig Technology Ag | Verfahren zum Herstellen einer Verpackung umhüllend Behältervorläufer, insbesondere jeweils für einen einzelnen formstabilen Nahrungsmittelbehälter, mit Umfalten des Behältervorläufers |
DE102016209235A1 (de) * | 2016-05-27 | 2017-11-30 | Sig Technology Ag | Verfahren zum Herstellen eines Behältervorläufers, insbesondere für einen einzelnen formstabilen Nahrungsmittelbehälter, ohne Umfalten des Behältervorläufers |
DE102016209237A1 (de) * | 2016-05-27 | 2017-11-30 | Sig Technology Ag | Behältervorläufer mit Aufformkoeffizienten, insbesondere für einen einzelnen formstabilen Nahrungsmittelbehälter |
DE102017201449A1 (de) | 2017-01-30 | 2018-08-02 | Sig Technology Ag | Flächenförmiger Verbund zum Herstellen formstabiler Nahrungsmittelbehälter mit einer Barriereschicht, die eine Barrieresubstratschicht und eine nach innen weisende Barrierematerialschicht aufweist |
US10676261B2 (en) | 2017-09-07 | 2020-06-09 | Silgan White Cap LLC | Closure assembly |
CA3092160A1 (en) * | 2018-03-09 | 2019-09-12 | Colgate-Palmolive Company | Recyclable plastic package |
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- 2011-08-04 ES ES11760993.3T patent/ES2627691T3/es active Active
- 2011-08-04 BR BR112013002716A patent/BR112013002716B8/pt active IP Right Grant
- 2011-08-04 WO PCT/EP2011/003914 patent/WO2012016702A1/de active Application Filing
- 2011-08-04 MX MX2013001382A patent/MX345590B/es active IP Right Grant
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Also Published As
Publication number | Publication date |
---|---|
BR112013002716B8 (pt) | 2023-01-10 |
CN103180142B (zh) | 2015-11-25 |
MX345590B (es) | 2017-02-03 |
DE102010033464A1 (de) | 2012-02-09 |
US9221228B2 (en) | 2015-12-29 |
ES2627691T3 (es) | 2017-07-31 |
US20130196101A1 (en) | 2013-08-01 |
CA2807176A1 (en) | 2012-02-09 |
MX2013001382A (es) | 2013-04-29 |
RU2570663C2 (ru) | 2015-12-10 |
BR112013002716A2 (pt) | 2016-05-31 |
EP2601049A1 (de) | 2013-06-12 |
DE102010033464B4 (de) | 2012-09-06 |
RU2013104651A (ru) | 2014-09-10 |
CN103180142A (zh) | 2013-06-26 |
BR112013002716B1 (pt) | 2020-10-06 |
CA2807176C (en) | 2018-09-11 |
WO2012016702A1 (de) | 2012-02-09 |
PL2601049T3 (pl) | 2017-09-29 |
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